The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2014
Filed:
Aug. 15, 2013
Tung-sheng Chen, Kaohsiung, TW;
Hung-shou Nien, Changhua, TW;
Yu-wei Chang, Changhua, TW;
Chung-sheng Cheng, Zhubei, TW;
Tung-Sheng Chen, Kaohsiung, TW;
Hung-Shou Nien, Changhua, TW;
Yu-Wei Chang, Changhua, TW;
Chung-Sheng Cheng, Zhubei, TW;
Richtek Technology Corporation, Chupei, HsinChu, TW;
Abstract
The present invention discloses a multi-phase switching regulator and a control method thereof. The multi-phase switching regulator includes plural power stage circuits, wherein at least one power stage circuit is enabled or disabled according to a phase adding/shedding signal; at least one zero current detection circuit, which is coupled to one of the power stage circuit, for generating a trigger signal according to an inductor current in a corresponding one of the power stage circuits, a zero current reference signal, and an average reference signal; and a phase control circuit controlling the phase adding/shedding operation according to the trigger signal.